Adjustable Tuning "T"
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The adjustable tuning "T" allows a proportioned percentage of fuel flow to each of the fuel rails. There are 2 individual adjustment screws, one for each of the 2 output fuel lines. The tuning "T" is preset at factory. No adjustments are necessary, unless tuning "T" is replaced.